Know all about Troctolite and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Syenite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Syenite is Earthy. Troctolite appears Veined and Shiny and Syenite appears Banded and Foilated. The luster of Troctolite is not available while that of Syenite is subvitreous to dull. Troctolite is available in dark grey to black colors whereas Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Syenite are cemetery markers, creating artwork.